Conveying installation with improved drum cover for the driving drum, reversing drum or loadbearing drums

Abstract

A conveying installation has a conveying belt and also has drums, loadbearing rollers and loadbearing frameworks. The conveying installation forms a material-conveying upper strand with a supply location for the conveying material and a mostly material-free lower strand. At least one drum and/or at least one loadbearing roller have/has a drum cover, which contains at least one layer composed of a foamed polymer mix.

Claims

1. A conveyor installation comprising: a conveyor belt, a plurality of drums; at least one loadbearing roller; and, a support frame; wherein the conveyor installation forms a material-conveying upper web with an application site for the material to be conveyed, and forms a lower web; wherein at least one drum and/or the at least one loadbearing roller has a drum covering which comprises at least one layer composed of a foamed polymer mixture; wherein the foamed polymer mixture is selected from the group consisting of butyl rubber (IIR), ethylene-propylene rubber (EPM), ethylene-propylene-diene rubber (EPDM), polyacrylate rubber (ACM), epichlorohydrin rubber (ECO), chlorosulfonated polyethylene rubber (CSM), silicone rubber (MVQ), and fluoro rubber (FPM), or a mixture thereof; and wherein an outer sheet of the drum covering is composed of the foamed polymer mixture.

2. The conveyor installation as claimed in claim 1, wherein the foamed polymer mixture is selected from the group consisting of EPDM, ACM, ECO, CSM, MVQ, and FPM or a mixture thereof.

3. The conveyor installation as claimed in claim 1, wherein the foamed polymer further comprises at least one pore-forming blowing agent that is an azo or diazo compound gas.

4. The conveyor installation as claimed in claim 3, wherein the pore-forming blowing agent comprises at least one acrylonitrile polymer.

5. The conveyor installation as claimed in claim 1, wherein the outer sheet is in the form of foil, woven fabric, and/or comprises at least one polymeric material.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

(1) The invention will now be described with reference to the drawings wherein:

(2) FIG. 1 shows a conveyor installation with a conveyor belt, a drum, and loadbearing rollers;

(3) FIG. 2 shows a cross section through a drum covering with a foamed polymer layer between covering underside and outer sheet; and,

(4) FIG. 3 shows a cross section through a drum covering with a foamed polymer layer as outer sheet.

DESCRIPTION OF THE PREFERRED EMBODIMENTS OF THE INVENTION

(5) FIG. 1 shows a conveyor installation 1 in the form of a belt-conveyor installation with a conveyor belt with application site 2 for material to be conveyed and discharge site 4 for material to be conveyed. The conveyor installation moreover comprises upper-web loadbearing rollers 3, lower-web loadbearing rollers 7, a deflector drum 6, a direction-reversal drum 9, a tensioning device 8, and a drive drum 5. The drive drum 5 and/or direction-reversal drum 9 and/or loadbearing rollers (3, 7) and/or the deflector drum 6 here comprise at least one layer based on a foamed polymer mixture.

(6) FIG. 2 shows a cross section through a drum covering with a foamed layer 10 located between covering underside 12 and outer sheet 13 of the drum covering; there is also an embedded textile layer 11 present here, and the additional foamed layer 10 is in direct contact with the textile layer 11 and the outer sheet 13. The outer sheet 13 here can take the form of foil of rubber mixture. The underside 12 of the drum covering here can be based on a rubber mixture or can be composed of at least one metal.

(7) FIG. 3 shows a cross section through a drum covering with a foamed layer 10 which takes the form of outer sheet of a drum covering. Between covering underside 12 and the foamed layer 10 there is a textile layer 11.

(8) It is understood that the foregoing description is that of the preferred embodiments of the invention and that various changes and modifications may be made thereto without departing from the spirit and scope of the invention as defined in the appended claims.

KEY

(9) (Part of the Description)

(10) 1 Conveyor installation

(11) 2 Application site for material to be conveyed

(12) 3 Upper-web loadbearing rollers

(13) 4 Discharge site for material to be conveyed

(14) 5 Drive drum

(15) 6 Deflector drum

(16) 7 Lower-web loadbearing rollers

(17) 8 Tensioning device

(18) 9 Direction-reversal drum

(19) 10 Foamed polymer layer

(20) 11 Textile layer

(21) 12 Underside of drum covering

(22) 13 Outer layer (outer sheet)